CN212200036U - Concrete structure for fabricated bridge - Google Patents
Concrete structure for fabricated bridge Download PDFInfo
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- CN212200036U CN212200036U CN202020792777.7U CN202020792777U CN212200036U CN 212200036 U CN212200036 U CN 212200036U CN 202020792777 U CN202020792777 U CN 202020792777U CN 212200036 U CN212200036 U CN 212200036U
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Abstract
The utility model relates to the technical field of bridge engineering, in particular to a concrete structure for an assembled bridge; the adopted technical scheme is as follows: a concrete structure for an assembled bridge comprises an upper structure body and a lower structure body, wherein the lower end of the upper structure body is provided with a connecting rod extending along the length direction of the upper structure body and a plurality of first connecting ribs distributed in a circular shape; the connecting rod is positioned in a circle surrounded by the first connecting ribs, the lower ends of the first connecting ribs are bent towards the upper ends of the connecting rod, and the lower parts of the first connecting ribs are connected with the connecting rod through lacing wires; the upper end of the lower mechanism body is provided with a blind hole and a ring rib, the connecting rod is inserted in the blind hole, and the lower end of the first connecting rib is hooked on the ring rib by the relative movement of the upper mechanism body and the connecting rod; and a gap between the lower end of the upper structure body and the upper end of the lower structure body is filled with the grouting body. The utility model discloses can improve the pier stud assembly efficiency of assembled bridge and ensure the structural strength of pier stud, have convenient assembling and the high characteristics of structural strength.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to a concrete structure for assembled bridge.
Background
The assembled bridge is a development trend of bridge engineering construction, but the existing pier column structure at the lower part of the assembled bridge mainly takes on-site support pouring as a main part. The assembled pier columns are mainly prefabricated in a centralized and sectional mode in a factory or a construction site and then conveyed to a site for assembly and forming, and the assembled bridge pier column assembling joint structure is the most critical, firm, safe, economical and attractive, and simple in structure and convenient to assemble and construct. The common bridge pier assembling joints include socket joints, steel bar anchoring joints, welding joints, snap ring joints, flange plate joints, prestressed joints or the combination joints of the above modes and the like, and are determined by the scale, stress condition and construction conditions of the bridge piers. The more steel bar anchoring joints are adopted, and steel bars or section steel are reserved on one member and inserted into a reserved groove of the other member, or the steel bars are mutually welded, and then semi-dry hard concrete is poured; has the defects of large welding amount of the steel bars, small welding space, labor and time waste, low structural strength and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems of low connecting efficiency and low structural strength of the existing assembly type bridge pier column; the utility model provides a concrete structure for assembled bridge can improve the pier stud assembly efficiency of assembled bridge and ensure the structural strength of pier stud, has characteristics that convenient assembling and structural strength are high.
The utility model discloses a following technical scheme realizes:
a concrete structure for an assembled bridge comprises an upper structure body and a lower structure body, wherein the lower end of the upper structure body is provided with a connecting rod and a plurality of first connecting ribs which are distributed in a circular shape, and the first connecting ribs and the connecting rod extend along the length direction of the upper structure body; the connecting rod is positioned in a circle surrounded by the first connecting ribs, the lower ends of the first connecting ribs are bent towards the upper ends of the connecting rod, and the lower parts of the first connecting ribs are connected with the connecting rod through lacing wires; the upper end of the lower mechanism body is provided with a blind hole and a ring rib, the connecting rod is inserted in the blind hole, and the lower end of the first connecting rib is hooked on the ring rib by the relative movement of the upper mechanism body and the connecting rod; and a gap between the lower end of the upper structure body and the upper end of the lower structure body is filled with the grouting body.
The lower end of the first connecting rib of the utility model is bent towards the upper end of the connecting rod, when the upper component is hoisted at the upper end of the lower component, the lower end of the connecting rod is firstly inserted into the blind hole, and the first connecting rib moves towards the ring rib; when the lower end of the connecting rod is abutted against the bottom of the blind hole, the connecting rod stops moving downwards, the upper structure body continues moving downwards, namely the upper structure body and the connecting rod move relatively, so that the lower end of the first connecting rib is hooked on the annular rib, and a gap between the lower end of the upper structure body and the upper end of the lower structure body is filled with the grouting body, so that the connection of the upper structure body and the lower structure body with the reinforcing steel bars inside is completed.
Because first splice bar lower extreme colludes and establishes on the ring muscle to first splice bar lower part is through lacing wire and connecting rod fixed connection, forms the structure of bicycle wheel, can realize the connection of the internal reinforcing bar of structure and lower structure, goes up the structure and arranges the bridge structure body gravity of structure top in and connects more firmly more greatly, for adopting the welded mode, connects simple and conveniently, and assembly efficiency is high. And fill the space between the upper end of upper structure body lower extreme and lower structure body through the mud jacking body to wrap first connecting rib, lacing wire, ring muscle and connecting rod and fix, can ensure the structural strength of the pier stud of assembled bridge. In addition, the connecting rod also plays a role in guiding and positioning, the positions of the upper construction body and the lower construction body do not need to be repeatedly adjusted in construction, and the efficiency of assembly construction can be further improved.
Preferably, the lower end of the upper structure body is provided with a sliding hole; the sliding hole and a circle surrounded by the first connecting rib are concentrically arranged, the upper end of the connecting rod is inserted into the sliding hole, and the connecting rod can slide along the length direction of the sliding hole. So that connecting rod both ends branch locate the upper structure body and construct the internal with down, improve the pier stud's of assembled bridge ability of shearing, further improve the structural strength of the pier stud of assembled bridge.
Preferably, go up the internal embedding of framework lower extreme and have a slide cartridge, the slide cartridge upper end is closed and is formed the slide opening, the slide cartridge lateral wall is equipped with a plurality of anchor muscle, even if be convenient for building of slide opening to establish, can ensure again that the slide opening has sufficient intensity, for directly setting up the blind hole in last framework, more can prevent the slide opening because of the shearing force fracture, ensures the structural strength of the pier stud of assembled bridge.
Similarly, a connecting cylinder is embedded in the upper end of the lower structure body, and the lower end of the connecting cylinder is closed to form a blind hole; the connecting cylinder side wall is provided with a plurality of anchor bars.
Preferably, connecting cylinder upper end hole is the bell mouth to in providing the direction for the connecting rod, in order to be convenient for quick insert the connecting rod lower extreme and establish in the blind hole, improve the hoist and mount efficiency of last structure body and lower structure body.
Further, a plurality of second connecting ribs which are circularly distributed are further arranged at the upper end of the lower mechanism body, a plurality of sleeve holes are formed in the lower end of the upper mechanism body, the upper ends of the second connecting ribs are inserted into the sleeve holes, so that the second connecting rib pieces are added to connect the upper mechanism body with the lower mechanism body, and the structural strength of the pier stud of the assembled bridge is further improved.
As a specific embodiment of the trepanning, the trepanning is an inner hole of the sleeve embedded in the upper structure, so that the trepanning is built conveniently and sufficient structural strength of the trepanning is ensured.
Preferably, the connecting rod is a hollow rod member to ensure sufficient rigidity of the connecting rod.
In order to further improve the structural strength of the assembled bridge pier stud, the lower end of the upper structural body and the upper end of the lower structural body are both concave.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses a first splice bar lower extreme is buckled to the connecting rod upper end, supports when leaning on in the blind hole bottom when the connecting rod lower extreme, and the connecting rod stops the downstream, and lower structure body continues to move down, goes up the relative movement of structure body and connecting rod promptly to collude the lower extreme of first splice bar and establish on the stirrup, space between the upper end of going up structure body lower extreme and lower structure body is filled by the mud jacking body, for the connection of the internal portion reinforcing bar of structure body and lower structure about accomplishing, connects simple and conveniently for adopting the welded mode, and assembly efficiency is high.
2. Fill the space between the upper end of structure body lower extreme and lower structure body through the mud jacking body to wrap up first connecting rib, lacing wire, ring muscle and connecting rod fixedly, can ensure the structural strength of the pier stud of assembled bridge. In addition, the first and second substrates are,
3. the connecting rod also plays a role in guiding and positioning, the positions of the upper structure body and the lower structure body do not need to be repeatedly adjusted in construction, and the efficiency of assembly construction can be further improved.
4. The upper end of the connecting rod is inserted into the sliding hole, and the connecting rod can slide along the length direction of the sliding hole. So that connecting rod both ends branch locate the upper structure body and construct the internal with down, improve the pier stud's of assembled bridge ability of shearing, further improve the structural strength of the pier stud of assembled bridge.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the upper structure of the present invention;
fig. 3 is a schematic view of the lower structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-upper structure, 2-lower structure, 3-connecting rod, 4-first connecting rib, 5-tie bar, 6-blind hole, 7-ring rib, 8-grouting body, 9-sliding hole, 10-sliding cylinder, 11-connecting cylinder, 12-second connecting rib, 13-trepanning hole and 14-sleeve.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
A concrete structure for an assembled bridge comprises an upper structure body 1 and a lower structure body 2, wherein the lower end of the upper structure body 1 is provided with a connecting rod 3 and a plurality of first connecting ribs 4 which are distributed in a circular shape, and the first connecting ribs 4 and the connecting rod 3 extend along the length direction of the upper structure body 1; the connecting rod 3 is positioned in a circle surrounded by the first connecting ribs 4, the lower ends of the first connecting ribs 4 are bent towards the upper ends of the connecting rod 3, and the lower parts of the first connecting ribs 4 are connected with the connecting rod 3 through the lacing wires 5; the upper end of the lower mechanism body 2 is provided with a blind hole 6 and a ring rib 7, the connecting rod 3 is inserted in the blind hole, and the lower end of the first connecting rib 4 is hooked on the ring rib 7 by the relative movement of the upper mechanism body 1 and the connecting rod 3; the gap between the lower end of the upper structure 1 and the upper end of the lower structure 2 is filled with a grouting material 8.
The lower end of the first connecting rib 4 of the utility model is bent towards the upper end of the connecting rod 3, when the upper component 1 is hoisted at the upper end of the lower component 2, the lower end of the connecting rod 3 is firstly inserted into the blind hole 6, and the first connecting rib 4 moves towards the annular rib 7; when the lower end of the connecting rod 3 is abutted against the bottom of the blind hole 6, the connecting rod 3 stops moving downwards, the upper structure body 1 continues moving downwards, namely the upper structure body 1 and the connecting rod 3 move relatively, so that the lower end of the first connecting rib 4 is hooked on the annular rib 7, and a gap between the lower end of the upper structure body 1 and the upper end of the lower structure body 2 is filled with grouting material 8, so that the connection of the upper structure body 2 and the lower structure body 2 is completed.
Because 4 lower extremes of first splice bar collude and establish on annular rib 7 to 4 lower parts of first splice bar are through lacing wire 5 and connecting rod 3 fixed connection, form the structure of bicycle wheel, can realize the connection of the internal reinforcement of the last structure 1 and the lower structure 2, go up structure 1 and arrange in the bridge structure gravity of 1 top of the last structure more firm with connecting more greatly, for adopting welded mode, connect simple and conveniently, assembly efficiency is high. And fill the space between the upper end of the upper structure body 1 lower extreme and the lower structure body 2 through the mud jacking body 8 to wrap and fix first connecting rib 4, lacing wire 5, ring muscle 7 and connecting rod 3, can ensure the structural strength of the pier stud of assembled bridge. In addition, the connecting rod 3 also plays a role in guiding and positioning, the positions of the upper construction body 1 and the lower construction body 2 do not need to be repeatedly adjusted in construction, and the assembly construction efficiency can be further improved.
Preferably, the lower end of the upper structure 1 is provided with a sliding hole 9; the sliding hole 9 and a circle surrounded by the first connecting rib 4 are concentrically arranged, the upper end of the connecting rod 3 is inserted into the sliding hole 9, and the connecting rod 3 can slide along the length direction of the sliding hole 9. So that 3 both ends of connecting rod divide locate in last structure 1 and lower structure 2, improve the ability of shearing of the pier stud of assembled bridge, further improve the structural strength of the pier stud of assembled bridge.
Preferably, the slide cylinder 10 is embedded in the lower end of the upper structure body 1, the upper end of the slide cylinder 10 is sealed to form the slide hole 9, the side wall of the slide cylinder 10 is provided with a plurality of anchoring ribs, so that the slide hole 9 can be ensured to have enough strength even if the slide hole 9 is built, and compared with the blind hole 6 directly arranged in the upper structure body 1, the slide hole 9 can be prevented from cracking due to shearing force, and the structural strength of the pier stud of the assembled bridge is ensured.
Similarly, a connecting cylinder 11 is embedded in the upper end of the lower structure 2, and the lower end of the connecting cylinder 11 is closed to form a blind hole 6; the side wall of the connecting cylinder 11 is provided with a plurality of anchor bars.
Preferably, the inner hole of the upper end of the connecting cylinder 11 is a tapered hole, so that the connecting rod 3 is guided, the lower end of the connecting rod 3 is rapidly inserted into the blind hole 6, and the hoisting efficiency of the upper component 1 and the lower component 2 is improved.
Further, 2 upper ends of the lower structure body are also provided with a plurality of second connecting ribs 12 which are circularly distributed, the lower end of the upper structure body 1 is provided with a plurality of sleeve holes 13, the upper ends of the second connecting ribs 12 are inserted into the sleeve holes 13, so that the upper structure body 1 is connected with the lower structure body 2 by the second connecting ribs 12, and the structural strength of the pier stud of the assembly type bridge is further improved.
As a specific embodiment of the trepanning 13, the trepanning 13 is an inner hole of a sleeve 14 embedded in the superstructure 1, so as to facilitate the construction of the trepanning 13 and ensure sufficient structural strength of the trepanning 13.
Preferably, the connecting rod 3 is a hollow rod member to ensure sufficient rigidity of the connecting rod 3.
In addition, in order to further improve the structural strength of the assembled bridge pier stud, the lower end of the upper structural body 1 and the upper end of the lower structural body 2 are both concave, so that two ends of the grouting body 8 are respectively inserted into the upper structural body 1 and the lower structural body 2.
The construction method of the embodiment comprises the following steps:
placing a sliding barrel 10, a sleeve 14 and a first connecting rib 4 into a pouring mold cavity of an upper structure body 1, placing a connecting barrel 11, a second connecting rib 12 and a root rib of a ring rib 7 into a pouring mold cavity of a lower structure body 2, and pouring to obtain the upper structure body 1 and the lower structure body 2;
the lower end of the lower structure body 2 is fixedly connected with the foundation pile of the pier stud, and the lower structure body 2 and the foundation pile of the pier stud can be integrally cast and molded according to the actual construction condition;
hoisting the upper structure 1 by using a crane or a tower crane or other hoisting equipment, and inserting the lower end of the connecting rod 3 into the blind hole 6, so that the lower end of the upper structure 1 is hoisted at the upper end of the lower structure 2;
a mud jacking mould is arranged outside the lower end of the upper structure body 1 and the upper end of the lower structure body 2;
the grouting mold is filled with concrete to form a grouting body 8 to complete the construction.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A concrete structure for an assembled bridge comprises an upper structure body (1) and a lower structure body (2), and is characterized in that the lower end of the upper structure body (1) is provided with a connecting rod (3) and a plurality of first connecting ribs (4) which are distributed in a circular shape, and the first connecting ribs (4) and the connecting rod (3) extend along the length direction of the upper structure body (1);
the connecting rod (3) is positioned in a circle surrounded by the first connecting ribs (4), the lower ends of the first connecting ribs (4) are bent towards the upper ends of the connecting rod (3), and the lower ends of the first connecting ribs (4) are connected with the connecting rod (3) through the lacing wire (5);
the upper end of the lower mechanism body (2) is provided with a blind hole (6) and a ring rib (7), the connecting rod (3) is inserted in the blind hole, and the lower end of the first connecting rib (4) is hooked on the ring rib (7) by the relative movement of the upper mechanism body (1) and the connecting rod (3);
and a gap between the lower end of the upper structure body (1) and the upper end of the lower structure body (2) is filled with grouting material (8).
2. The concrete structure for an assembled bridge according to claim 1, wherein the upper structure body (1) is provided at a lower end thereof with a slide hole (9);
the sliding hole (9) and a circle surrounded by the first connecting rib (4) are concentrically arranged, the upper end of the connecting rod (3) is inserted into the sliding hole (9), and the connecting rod (3) can slide along the length direction of the sliding hole (9).
3. The concrete structure for the fabricated bridge according to claim 2, wherein a sliding cylinder (10) is embedded in the lower end of the upper structure body (1), the upper end of the sliding cylinder (10) is closed to form a sliding hole (9), and a plurality of anchoring ribs are arranged on the side wall of the sliding cylinder (10).
4. The concrete structure for an assembled bridge according to claim 1, wherein the lower structure (2) is embedded with a connecting cylinder (11) at the upper end, and the lower end of the connecting cylinder (11) is closed to form a blind hole (6).
5. The concrete structure for an assembled bridge according to claim 4, wherein the side wall of the connecting cylinder (11) is provided with a plurality of anchor bars.
6. The concrete structure for an assembled bridge according to claim 4, wherein the inner hole of the upper end of the connecting cylinder (11) is a tapered hole.
7. The concrete structure for assembled bridge according to claim 1, wherein the upper end of the lower structure (2) is further provided with a plurality of second connecting ribs (12) distributed in a circular shape, the lower end of the upper structure (1) is provided with a plurality of sleeve holes (13), and the upper ends of the second connecting ribs (12) are inserted into the sleeve holes (13).
8. The concrete structure for an assembled bridge according to claim 7, wherein the trepan boring (13) is an inner bore of a sleeve (14) embedded in the upper structural body (1).
9. The concrete structure for an assembled bridge according to claim 1, wherein the connecting rods (3) are hollow rods.
10. The concrete structure for assembled bridge according to any one of claims 1 to 9, wherein the lower end of the upper structure (1) and the upper end of the lower structure (2) are both concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792777.7U CN212200036U (en) | 2020-05-13 | 2020-05-13 | Concrete structure for fabricated bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792777.7U CN212200036U (en) | 2020-05-13 | 2020-05-13 | Concrete structure for fabricated bridge |
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| Publication Number | Publication Date |
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| CN212200036U true CN212200036U (en) | 2020-12-22 |
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| CN202020792777.7U Active CN212200036U (en) | 2020-05-13 | 2020-05-13 | Concrete structure for fabricated bridge |
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| CN (1) | CN212200036U (en) |
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- 2020-05-13 CN CN202020792777.7U patent/CN212200036U/en active Active
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